It is very similar to that!... but I don't think this will ever get to a high speed sort of thing... it just is limited by the mechanical design... however, it does have advantages hat are worth it in a small range.

THz is pretty amazing... I didn't realise the potential Earth-bound applications... but they are really quite extraordinary and I'm so proud of my friend who is doing the hard experimental and theoretical work to make it work! I only knew of it as a way to pick up the images of the first original galaxies.... more cool, but much less practical!